const newLocal = ';expires='
// 设置cookie expiremMinutes 过期时间分钟可以大点 1440*3 1440 为一天分钟数，后面意味着几天 value String c_name String
export function setCookie(c_name, value, expiremMinutes) {
    // console.log(value,escape(value));
    let exdate = new Date()
    exdate.setTime(exdate.getTime() + expiremMinutes * 60 * 1000)
    document.cookie = c_name + '=' + escape(value) + ((expiremMinutes == null) ? '' : newLocal + exdate.toGMTString())
}

// 读取cookie
export function getCookie(c_name) {
    if (document.cookie.length > 0) {
        let c_start = document.cookie.indexOf(c_name + '=')
        if (c_start !== -1) {
            c_start = c_start + c_name.length + 1
            let c_end = document.cookie.indexOf(';', c_start)
            if (c_end === -1) { c_end = document.cookie.length }
            return unescape(document.cookie.substring(c_start, c_end))
        }
    }
    return ''
}

// 删除cookie
export function delCookie(c_name) {
    let exp = new Date()
    exp.setTime(exp.getTime() - 1)
    let cval = getCookie(c_name)
    if (cval != null) {
        document.cookie = c_name + '=' + cval + newLocal + exp.toGMTString()
    }
}
